Question

The length and breadth of a plate are (40 plus minus 0.2) cm & (30 plus minus 0.1) cm, the absolute error in measurement of area is what?

Answer 1

hope this helps you..........

Answer 2

Answer:

The correct answer is 0.3cm.

Explanation:

The length of the plate = (40±0.2)cm

The breadth of a plate = (30±0.1)cm

Error in the length of the plate,

$L_{e}=0.2cm$

Error in the breadth of the plate,

$B_{e}=0.1cm$

The absolute error in the measurement of the area,

$E_{ab}=L_{e} +B_{e}$

      = 0.2 + 0.1

      = 0.3cm

So, the absolute error in the measurement of the area is equal to 0.3cm.